Paper Title:
Concurrent and Separate Grade-Bundles with a Common Grade Sample Linking Designs for Vertical Scaling
  Abstract

Mathematics tests of multiple-choice items for grades 2 through 6 were vertically scaled with the three-parameter logistic model using two different linking procedures: concurrent and separate by grade bundles. This research implements two designs under the separate by grade bundles procedure: grade bundle of two grades and grade bundle of three grades. All the items were calibrated using the 3-parameter logistic model (3-PLM) in the computer program, Bilog-MG with Grade 4 as the reference group. Under the separate grade-bundles method, the mean/sigma of the ability (i.e., θ) transformation method was applied to link the grade bundles. In general, the three scaling methods performed similarly in item difficulty and discrimination estimates, and in three score scale properties: grade-to-grade growth, grade-to-grade variability, and the separation of grade distributions. As a result, the grade-bundle of three grades design is preferable in the sense that it is more robust to the violation of the unidimensionality assumption over grades than the concurrent method and it yields less linking errors than the grade-bundle of two grades design.

  Info
Periodical
Advanced Materials Research (Volumes 108-111)
Edited by
Yanwen Wu
Pages
1348-1353
DOI
10.4028/www.scientific.net/AMR.108-111.1348
Citation
C. J. Lin, "Concurrent and Separate Grade-Bundles with a Common Grade Sample Linking Designs for Vertical Scaling", Advanced Materials Research, Vols. 108-111, pp. 1348-1353, 2010
Online since
May 2010
Authors
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Wen Huang, Zhong Wei Huang
Abstract:A statistical constitutive model, which takes account the effect of strain rate, was presented to describe the stress-strain relationship of...
1213
Authors: Jian Hua Cheng, Li Xin Tang
Chapter 3: Mechanical, Electronic and Material Engineering
Abstract:The calibration of the internal and external parameters of each camera is a crucial step for free-form surface measurement based on stereo...
1699
Authors: Hong Yan Wu, Fu Mei Wang, Feng Tan
Chapter 1: Natural Fiber
Abstract:The study focused on structure and fiber length of Java kapok fruit from Pate County, Java Tengah in Indonesia for effective utilization. The...
112
Authors: Xun Luo, Wei Zhao, Hai Nan Zhang
Chapter 6: Sensors, Detection and Measuring Technologies
Abstract:It is proposed a method of cameras group calibration with pairwise bundle adjustment using one dimensional wand. The one dimensional wand is...
702